High availability L3 gateways for logical networks
US9503371B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2014 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Nov 1, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/64
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Some embodiments provide a method for a network controller in a network control system that manages a plurality of logical networks. The method receives a specification of a logical network that includes a logical router. The method selects at least two host machines to implement a routing table for the logical router from several host machines designated for hosting logical routers. The selected host machines include a designated master host machine for the routing table. The method generates data tuples for provisioning a set of managed forwarding elements that implement the logical network to send data packets that require processing by the routing table to the selected host machines. The data tuples specify an order for the selected host machines with the designated master host machine as the first host machine in the specified order.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.